Mechanical movement



UNITED STATES PATENT; O FICE.

ISAAC S. BRYANT, OF LA JUNTA, COLOR ADO. I

MECHANICAL Movi-:i\lusrr.1

SPECIFICATION forming part of Letters Patent No. 528,412, dated October 30,1 894. Application filed December 12, 1893. Serial No. 93,501- (No model.)

To all whom; it may concern:

Beit known that I, ISAAC S. BRYANT, Junta, in the county of Otero and State of Colorado, have invented a new and Improved Mechanical Movement, of which the following is a full, clear, and exact description.

The invention relates to'mechanical movements such as shown and described in Let ters lfgbtent No. 512,094., granted to me January 2,

4:. The object of the invention is to provide a new and improved mechanical movement, de-

signed to convert reciprocating motion into rotary motion in a very simple and effective manner, and at the same time avoiding all dead center positions of the transmitting parts. p

The invention consists of certain parts and details and combinations of the same, as will be hereinafter described and then pointed out in the claim. I

Reference is to be had to the accompanying drawings, forminga part of this specification, in which similar letters of reference indicate corresponding parts in both the figures.

Figure 1 is a side elevation of the improvement, with partsin'section on the line 1-1 of Fig. 2; and Fig. 2 is a' transverse section of the same on the line 2- 2 of Fig. 1.

The improved mechanical movement is mountedon a suitably-constructed frame A,

which supports a cylinder B, connected with a suitable source of supply to actuate the piston therein, so that the piston rod C, reciprocates in the usual manner. On the outer end of the piston rod C is secured or formed a head I), provided with transversely-extending pivot pins E, E, located one above the other and carrying the jaws F and F, respectively, fulcrumed at G, G, respectively, on a cross head ll, provided on opposite sides with guideways ll, fitted to slide on the slideways A, fixed on the main frame A.

It win be observed that the cross head II is not rigidly connected to the piston head D, andtherefore, when the motion of the piston reverses, the cross head will remain stationary until the jaw F or F is carried into clam ping engagement with the chain l, to be described presently.

The cross head II is provided on its upper and lower nds with jaws ll and Il, through of La which pass theruns l'and I of-an endless chain I, passing over a. sprocket wheel J, secured on the main driving shaft K, journaled at one end of the frame A, as plainly illustrated in Fig. 1. The sprocket chain I also passes over a sprocket wheel L, secured on a shaft N, mounted on the other end of'the frame A and serving to carry the runs ,1 and I of the said sprocket chain I above and be- II, at the time, the piston rod 0 is on the inward stroke in the direction of the arrow a. The operation is as follows: tVhen the pistori rod C is on the inward stroke in the direcpin E causes the jaw F to swing in the direction of the arrow 1), the said jaw turning on the pivot pin G. By the jaw F moving in this direction, the edge F moves in contact with the top surface of the lower run 1 so as to clamp the latter firmly in position on the fixed jaw 1-1 of the cross head. II. The inward pull of the head D on the other pivot E causes a swinging motion of the jaw Fin the direction of the arrow 0, so that the edge F is moved away from the'under surface'of the run I so that the latter passes freely between the said clamping edge F and the fixed jaw ll of the cross head ll.

whereby the clamping edge F is moved in As' the piston 0 is. thus on its inward stroke thellower run P.

contact with the under side of the run Iand clamped upper run It at the chain I moves in the direction of the arrow d thus continuing the traveling motion previously imparted to the chain on the inward stroke of' the piston rod 0. -When the piston rod 0 arrives at the end of this outward stroke and returns on the inward stroke then the jaw F is moved out of engagement with the run I and the other jaw F again clamps the lower run I to the jaw 11, as previously described, so that a continuons traveling motion is given to the chain on both the inward and outward strokes of the piston C.

' It will be seen that this nechanical'movement isvery simple in construction, and that a continuous traveling motion is given to the chain 1, so that the sprocket wheel imparts described.

I a continuous rotary motion to the main driv- 3o ing shaft K and the machinery connected therewith as long as the motive agent admitted tothe cylinder B actuates the piston contained in the said cylinder. I

Having thus fully described my invention, 35

I claim as new-and desire to secure by Letters Patent V r v A mechanical ..n1ovement, comprising a frame provided with slideway's,"a cross-head whose'central portion is mounted to slide 4o thereon, clamping jaws rigidly secured to' the extremities of the cross-head parallel to the said slideways, jaws pivoted to the cross-head on each side of the slideways, with their outer ends extending in opposite directions, a re- 5 ciprocating rod pivotally connected with the inner endsof the pivoted jaws, to swing the jaws on their pivots,t he reciprocating rod and the cross-head being arranged essentially in longitudinal central alignment, and an end- 50 less chain whose runs pass between the pivoted and the clamping jaws, substantial] y as ISAAC s. .BRYANT: Witn'esses:

'0. R. BUCKEY,

WILSON A. IIAn'r. 

